Web Framework
13,475 of the 1,000,000 top sites in our Tranco top-1M census run Ruby on Rails (1.3%). A server-side web application framework written in Ruby, following a convention-over-configuration philosophy. Detection is homepage-level HTML/header fingerprinting, so a site can run Ruby on Rails on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | github.com | #29 (Tranco) | Find emails |
| 2 | snapchat.com | #123 (Tranco) | Find emails |
| 3 | apache.org | #125 (Tranco) | Find emails |
| 4 | w3.org |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| permacultureglobal.org | #179,503 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 3 more | Find emails |
| hubbiz.com | #179,538 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 2 more | Find emails |
| muziker.hr | #179,566 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 4 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| musictribe.com | #179,567 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| vbschools.com | #179,597 | AudioEye, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| fuzu.com | #179,598 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 6 more | Find emails |
| civilservice.gov.uk | #179,613 | CSC (Digital Brand Services), Fastly, Nginx + 2 more | Find emails |
| fitness-singles.com | #179,679 | AdRoll, Cloudflare Turnstile, DoubleClick (Google Ads) + 10 more | Find emails |
| testprovide.com | #179,916 | Amazon CloudFront, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| crowdreviews.com | #179,927 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| archdaily.cn | #179,932 | AdRoll, Amazon (ACM), Amazon CloudFront + 4 more | Find emails |
| corbisimages.com | #179,975 | Amazon (ACM), Amazon CloudFront, Google Fonts + 2 more | Find emails |
| dtek-oem.com.ua | #180,064 | Cloudflare, Google Analytics, Google Tag Manager + 3 more | Find emails |
| kihapp.com | #180,111 | Let's Encrypt, Meta Pixel | Find emails |
| realtimepackagetracker.co | #180,134 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| pcf.fr | #180,292 | Bluesky, Bootstrap, Cloudflare Web Analytics + 13 more | Find emails |
| toto12upline.org | #180,302 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 4 more | Find emails |
| activenow.io | #180,462 | Cloudflare, Cloudflare edge/CDN, Google Ads Conversion + 10 more | Find emails |
| walleypay.com | #180,483 | ASP.NET, Azure DNS, DigiCert + 13 more | Find emails |
| coalize.com.br | #180,493 | Adobe Fonts (Typekit), Bootstrap, Cloudflare + 9 more | Find emails |
| watershed.co.uk | #180,609 | Adobe Fonts (Typekit), Apache, Cloudflare Turnstile + 12 more | Find emails |
| aviacareer.com | #180,848 | Google Analytics, Google Fonts, Let's Encrypt + 7 more | Find emails |
| resolver.co.uk | #180,868 | Amazon (ACM), Amazon Route 53, Bootstrap + 17 more | Find emails |
| congressarchives.org | #180,876 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| eno.org | #180,877 | Cloudflare, Cloudflare edge/CDN, Cookiebot + 17 more | Find emails |
Showing the first 10,000matches — add a filter to narrow.
From the Crawlora Website Tech Stack Dataset, a homepage-level fingerprint of a 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →